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Tool joint structure

a tool and joint technology, applied in the field of tools, can solve the problems of increasing assembly cost, and a lot of time for a universal tool joint structure, and achieve the effect of increasing assembly cost and requiring a lot of labor

Inactive Publication Date: 2011-09-22
SU CHENG WEI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention provides a tool joint structure that reduces assembly cost by assembling the positioning element in an insertion-pressing manner to fix the respective components. The structure includes a body, a pushing assembly, a rod element, and a positioning element. The body has an engaging portion and a pivoting portion with a pivoting groove and two limiting grooves. The pressing assembly is compressible and disposed in the receiving groove. The rod element has a working portion and a ball portion with a bolt. The positioning element has a pressing portion that presses against the outer peripheral surface of the ball portion to prevent the rod element from disengaging from the body.

Problems solved by technology

The through hole is sealed by welding, but in the manufacturing process, since the universal tool joint structure has an excessively small volume and needs to be subjected to welding operation and grinding operation, the assembly of the universal tool joint structure costs lots of time and requires much labor, thus increasing the assembly cost.

Method used

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Experimental program
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first embodiment

[0024]Referring to FIGS. 1-4, the present invention provides a tool joint structure that can be connected to a drive tool 11 and a socket 12. The tool joint structure in the present invention comprises a body 20, a pressing assembly 30, a rod element 40 and a positioning element 50.

[0025]The body 20 includes an engaging portion 21 and a pivoting portion 22 at both ends thereof. The engaging portion 21 includes an engaging groove 211 to be engaged on the drive tool 11. The pivoting portion 22 is formed with a pivoting groove 23 in an axial direction of the body 20. The pivoting groove 23 includes a receiving groove 24 in a bottom surface 231 thereof. The pivoting groove 23 is formed with two limiting grooves 25 in an inner peripheral surface 232 thereof in the axial direction of the body 20. The respective limiting grooves 25 are defined by a bottom surface 251 and two side surfaces 252 connected at both ends of the bottom surface 251. Furthermore, the pivoting groove 23 is formed in...

second embodiment

[0037]Referring to FIG. 7, preferably, the present invention provides a tool joint structure in accordance with a second embodiment in which a bolt 43 is integrally formed on the ball portion 42 of the rod element 40 and has both ends 431 directly protruding out of the outer peripheral surface 423 of the ball portion 42. The two ends 431 are disposed in the two limiting grooves 25 of the body 20 in the same manner.

[0038]Referring to FIG. 8, besides including the spring and the steel ball, the pressing assembly in accordance with the present invention can also be an elastic sheet 60. The elastic sheet 60 includes a bottom portion 61 pressing against a bottom surface of the receiving groove 24, and a pressing portion 62 pressing against the outer peripheral surface 423 of the ball portion 42 of the rod element 40.

third embodiment

[0039]Finally, referring to FIGS. 9 and 10, the present invention provides a tool joint structure in accordance with a third embodiment which also comprises the body 20, the pressing assembly 30, the rod element 40, and a positioning element 70. Its configuration and function are the same as the above embodiment, so no further explanation is provided herein, but the difference of the present embodiment is described as follows:

[0040]The inner peripheral surface 232 of the pivoting groove 23 of the body 20 is formed with a curved groove 27 for accommodation of the positioning element 70. The positioning element 70 is a C-shaped buckle and includes a pressing portion 71 pressing against the outer peripheral surface 423 of the ball portion 42, preventing the rod element 40 from disengaging from the body 20. The ball center 421 of the ball portion 42 of the rod element 40 is located closer to the bottom surface 231 of the pivoting groove 23 than the curved groove 27.

[0041]The aforementio...

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PUM

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Abstract

A tool joint structure capable of being connected to a drive tool and a socket comprises a body, a pressing assembly, a rod element and a positioning element. The respective components of the tool joint structures can be fixed by the positioning element in an insertion-pressing manner, thus reducing the assembly cost of the tool joint structure.

Description

BACKGROUND OF THE INVENTION[0001]1. Field of the Invention[0002]The present invention relates to a tool capable of being adjusted to various working angle, and more particularly to a tool joint structure.[0003]2. Description of the Prior Art[0004]A conventional universal tool joint structure comprises a cylinder-shaped master seat formed with a rectangular engaging hole in a first end thereof, and a second end of the master seat includes a round connecting hole. The connecting hole includes a through hole penetrating a side wall thereof. The master seat is further formed in an inner surface of the connecting hole with an accommodation groove opposite the through hole. In an inner bottom of the connecting hole of the master spring is disposed a compress spring, and a pivot ball outside the compress spring. The pivot ball is a first end of a joint, and a second end of the joint is a rectangular engaging portion. Furthermore, the pivot ball includes two penetration holes penetrating tw...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): F16C11/06
CPCY10T403/32565F16D3/2052
Inventor SU, CHENG-WEI
Owner SU CHENG WEI